Running command: translateModel(Buildings.Fluid.SolarCollectors.Examples.Tubular,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Fluid.SolarCollectors.Examples.Tubular")
Notification: Performance of loadModel(Buildings): time 3.819/3.819, allocations: 402 MB / 416.6 MB, free: 10.2 MB / 346.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.026e-05/3.037e-05, allocations: 4 kB / 0.5009 GB, free: 8.25 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2096/0.2097, allocations: 92.69 MB / 0.5915 GB, free: 11.38 MB / 0.4948 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.SolarCollectors.Examples.Tubular): time 0.5682/0.778, allocations: 29.48 MB / 0.6202 GB, free: 13.84 MB / 0.5105 GB
Notification: Performance of NFInst.instExpressions: time 0.231/1.009, allocations: 130.2 MB / 0.7474 GB, free: 14.76 MB / 0.6198 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.003185/1.012, allocations: 87.75 kB / 0.7475 GB, free: 14.67 MB / 0.6198 GB
Notification: Performance of NFTyping.typeComponents: time 0.002731/1.015, allocations: 492.9 kB / 0.7479 GB, free: 14.19 MB / 0.6198 GB
Notification: Performance of NFTyping.typeBindings: time 0.007359/1.022, allocations: 1.394 MB / 0.7493 GB, free: 12.79 MB / 0.6198 GB
Notification: Performance of NFTyping.typeClassSections: time 0.006429/1.029, allocations: 1.349 MB / 0.7506 GB, free: 11.44 MB / 0.6198 GB
Notification: Performance of NFFlatten.flatten: time 0.01265/1.042, allocations: 5.474 MB / 0.7559 GB, free: 5.957 MB / 0.6198 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.007469/1.049, allocations: 3.603 MB / 0.7595 GB, free: 2.336 MB / 0.6198 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.007226/1.056, allocations: 2.47 MB / 0.7619 GB, free: 15.86 MB / 0.6355 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.00568/1.062, allocations: 2.137 MB / 0.764 GB, free: 13.71 MB / 0.6355 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.005454/1.068, allocations: 0.8935 MB / 0.7648 GB, free: 12.82 MB / 0.6355 GB
Notification: Performance of NFPackage.collectConstants: time 0.001929/1.07, allocations: 172 kB / 0.765 GB, free: 12.65 MB / 0.6355 GB
Notification: Performance of NFScalarize.scalarize: time 0.002133/1.072, allocations: 0.8949 MB / 0.7659 GB, free: 11.75 MB / 0.6355 GB
Notification: Performance of NFVerifyModel.verify: time 0.00285/1.075, allocations: 468 kB / 0.7663 GB, free: 11.3 MB / 0.6355 GB
Notification: Performance of NFConvertDAE.convert: time 0.01268/1.087, allocations: 6.931 MB / 0.7731 GB, free: 4.352 MB / 0.6355 GB
Notification: Performance of FrontEnd - DAE generated: time 4.558e-06/1.087, allocations: 0 / 0.7731 GB, free: 4.352 MB / 0.6355 GB
Notification: Performance of FrontEnd: time 3.427e-06/1.088, allocations: 0 / 0.7731 GB, free: 4.352 MB / 0.6355 GB
Notification: Performance of Transformations before backend: time 0.0002913/1.088, allocations: 0 / 0.7731 GB, free: 4.352 MB / 0.6355 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 1047
 * Number of variables: 1047
Notification: Performance of Generate backend data structure: time 0.01674/1.105, allocations: 4.425 MB / 0.7774 GB, free: 15.84 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 6.981e-05/1.105, allocations: 15.98 kB / 0.7774 GB, free: 15.82 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01686/1.122, allocations: 1.554 MB / 0.7789 GB, free: 14.26 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.01547/1.137, allocations: 4.309 MB / 0.7832 GB, free: 9.879 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004408/1.138, allocations: 320.2 kB / 0.7835 GB, free: 9.562 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001853/1.139, allocations: 423.9 kB / 0.7839 GB, free: 9.148 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02217/1.162, allocations: 5.887 MB / 0.7896 GB, free: 3.012 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001772/1.162, allocations: 11.84 kB / 0.7896 GB, free: 3 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0008369/1.163, allocations: 172 kB / 0.7898 GB, free: 2.832 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002096/1.163, allocations: 127.9 kB / 0.7899 GB, free: 2.707 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02445/1.187, allocations: 5.712 MB / 0.7955 GB, free: 12.98 MB / 0.6667 GB
Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts.
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05362/1.241, allocations: 20.84 MB / 0.8158 GB, free: 7.301 MB / 0.6823 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01609/1.257, allocations: 3.687 MB / 0.8194 GB, free: 3.59 MB / 0.6823 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.003457/1.261, allocations: 1.591 MB / 0.821 GB, free: 1.684 MB / 0.6823 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.009465/1.27, allocations: 2.188 MB / 0.8231 GB, free: 15.43 MB / 0.698 GB
Notification: Performance of pre-optimization done (n=276): time 1.013e-05/1.27, allocations: 0 / 0.8231 GB, free: 15.43 MB / 0.698 GB
Notification: Performance of matching and sorting (n=294): time 0.05955/1.33, allocations: 12.86 MB / 0.8357 GB, free: 2.363 MB / 0.698 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.000159/1.33, allocations: 239.9 kB / 0.8359 GB, free: 2.078 MB / 0.698 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.008102/1.338, allocations: 3.096 MB / 0.8389 GB, free: 14.99 MB / 0.7136 GB
Notification: Performance of collectPreVariables (initialization): time 0.0009295/1.339, allocations: 81.7 kB / 0.839 GB, free: 14.91 MB / 0.7136 GB
Notification: Performance of collectInitialEqns (initialization): time 0.003047/1.342, allocations: 1.995 MB / 0.841 GB, free: 12.89 MB / 0.7136 GB
Notification: Performance of collectInitialBindings (initialization): time 0.002115/1.344, allocations: 0.9973 MB / 0.8419 GB, free: 11.88 MB / 0.7136 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004992/1.345, allocations: 64 kB / 0.842 GB, free: 11.82 MB / 0.7136 GB
Notification: Performance of setup shared object (initialization): time 0.000368/1.345, allocations: 440.8 kB / 0.8424 GB, free: 11.38 MB / 0.7136 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.008313/1.354, allocations: 1.845 MB / 0.8442 GB, free: 9.535 MB / 0.7136 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.009151/1.363, allocations: 2.524 MB / 0.8467 GB, free: 6.75 MB / 0.7136 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.00939/1.372, allocations: 2.257 MB / 0.8489 GB, free: 4.465 MB / 0.7136 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.478e-05/1.372, allocations: 11.94 kB / 0.8489 GB, free: 4.453 MB / 0.7136 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02513/1.398, allocations: 5.483 MB / 0.8543 GB, free: 14.91 MB / 0.7292 GB
Notification: Performance of prepare postOptimizeDAE: time 0.003281/1.401, allocations: 7.721 MB / 0.8618 GB, free: 6.48 MB / 0.7292 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.853e-05/1.401, allocations: 20 kB / 0.8618 GB, free: 6.461 MB / 0.7292 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.005032/1.406, allocations: 0.5752 MB / 0.8624 GB, free: 5.879 MB / 0.7292 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01012/1.416, allocations: 0.9244 MB / 0.8633 GB, free: 4.953 MB / 0.7292 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01392/1.43, allocations: 5.701 MB / 0.8689 GB, free: 14.96 MB / 0.7448 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007556/1.438, allocations: 327.3 kB / 0.8692 GB, free: 14.64 MB / 0.7448 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001102/1.439, allocations: 163.9 kB / 0.8693 GB, free: 14.48 MB / 0.7448 GB
Notification: Performance of prepare postOptimizeDAE: time 1.682e-05/1.439, allocations: 8 kB / 0.8693 GB, free: 14.47 MB / 0.7448 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.02392/1.463, allocations: 5.15 MB / 0.8744 GB, free: 9.273 MB / 0.7448 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.174e-05/1.463, allocations: 16 kB / 0.8744 GB, free: 9.258 MB / 0.7448 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.004946/1.468, allocations: 0.6054 MB / 0.875 GB, free: 8.648 MB / 0.7448 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.008673/1.477, allocations: 0.8736 MB / 0.8758 GB, free: 7.773 MB / 0.7448 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01219/1.489, allocations: 5.112 MB / 0.8808 GB, free: 2.406 MB / 0.7448 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00719/1.496, allocations: 327.3 kB / 0.8811 GB, free: 2.086 MB / 0.7448 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009178/1.497, allocations: 155.9 kB / 0.8813 GB, free: 1.934 MB / 0.7448 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 79
 * Number of states: 0 ()
 * Number of discrete variables: 6 ($whenCondition2,$whenCondition1,$PRE.weaDat.conTim1.tStart,weaDat.conTim1.tStart,$PRE.weaDat.conTim.tStart,weaDat.conTim.tStart)
 * Number of discrete states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (397):
 * Single equations (assignments): 392
 * Array equations: 0
 * Algorithm blocks: 2
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 1
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details:
 * Constant Jacobian: 0
 * Linear Jacobian (size,density): 0
 * Non-linear Jacobian: 1 {1}
 * Without analytic Jacobian: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 2 {1 2,1 17}
Notification: Performance of prepare postOptimizeDAE: time 0.004608/1.502, allocations: 1.491 MB / 0.8827 GB, free: 444 kB / 0.7448 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001325/1.503, allocations: 387.3 kB / 0.8831 GB, free: 52 kB / 0.7448 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.5857/2.089, allocations: 5.317 MB / 0.8883 GB, free: 248.4 MB / 0.7448 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.01756/2.107, allocations: 4.319 MB / 0.8925 GB, free: 246.7 MB / 0.7448 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.001e-05/2.107, allocations: 4.859 kB / 0.8925 GB, free: 246.7 MB / 0.7448 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.003825/2.11, allocations: 1.046 MB / 0.8935 GB, free: 246.3 MB / 0.7448 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001267/2.112, allocations: 70.45 kB / 0.8936 GB, free: 246.3 MB / 0.7448 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.006147/2.118, allocations: 322.3 kB / 0.8939 GB, free: 246.2 MB / 0.7448 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006911/2.119, allocations: 191.7 kB / 0.8941 GB, free: 246.2 MB / 0.7448 GB
Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information.
Error: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed!
Notification: Performance of <failed> postOpt createDAEmodeBDAE (simulation): time 0.02047/2.139, allocations: 3.611 MB / 0.8976 GB, free: 244.9 MB / 0.7448 GB
Error: post-optimization module createDAEmodeBDAE (simulation) failed.